<template>
  <div class="child2">
    <h3>子组件2</h3>
    <h4>电脑: {{ computer }}</h4>
    <h4>玩具: {{ toy }}</h4>
  </div>
</template>

<script setup lang="ts" name="Child2">
import {onUnmounted, ref} from "vue";
import emitter from "@/utils/emitter";
import Emitter from "@/utils/emitter";

//数据
let computer = ref('联想')
let toy = ref('')

//给emitter绑定send-toy事件
emitter.on('send-toy', (value:any) => {
  console.log('send-toy',value)
  toy.value = value
})

//在组件卸载时解绑send-toy
onUnmounted(() => {
  emitter.off('send-toy')
})
</script>

<style scoped>
	.child2{
		margin-top: 50px;
		background-color: orange;
		padding: 10px;
		box-shadow: 0 0 10px black;
		border-radius: 10px;
	}
</style>